Paper container lining machine



Dec. 25, 1951 R. s. CONDON 2,579,907

PAPER CONTAINER LINING MACHINE Filed April 25, 1949 e Sheets-Sheet 1Fig.2.

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gwumvloo Boberf 8. Condom ATTORNEY-9 Dec. 25, 1951 R. s. CONDON PAPERCONTAINER LINING MACHINE 6 Sheets-Sheet 2 Filed April 25, 1949 1 l 9 w J9 3% ATTORNEYS Dec. 25, 1951 R. s. CONDON PAPER CONTAINER LINING MACHINE6 Sheets-Sheet 5 Filed April 25, 1949 ATTOR N EYS D 1951 R. s. CONDONPAPER CONTAINER LJINING MACHINE Filed April 25, 1949 6 Sheets-Sheet 4Fig. 10.

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PAPER CONTAINER LINING MACHINE Filed April 25. 1949 e Sheets-Sheet 5INVENTOR. 30b??? 3. Cond A7TOR NEYS 1386- 1951 R. s. CONDON PAPERCONTAINER LINING MACHINE 6 Sheets-Sheet 6 Filed April 25, 1949 r kbO Q801% E55: @2633 wmmim EKG kbO QQMEW I N VENT OR.

Haber) 3. Condon, Y n- &1 13152 Patented Dec. 25, 1951 PAPER CONTAINERLINING MACHINE Robert S. Condon, Rutland, Vt., assignor to 0011-tinental Can Company, Inc., New York, N. Y., a corporation of New YorkApplication April 25, 1949, Serial No. 89,550

20 Claims.

The invention relates generally to the artof V lining paper containersand primarily seeks to provide a simple and eificiently operable machineadapted for forming and shaping corrugated liners from a continuousstrip of liner material and inserting the formed and shaped liners intoserially presented paper containers.

Cup-like containers formed of paper to comprise a cylindriform body anda bottom or end closure and adapted to be covered by a closure of theslip-on or other type are well known and in widespread use in thepackaging of confections, foodstuffs and the like. In the packaging ofsome products it is desirable that a. liner be placed in each containerbefore the products to be packaged are placed therein. In some instancesthese liners are formed of corrugated paper in order to provide acushioning or marking element engageable with the packaged product. Theformation and insertion of such liners, in whole or in part by hand, isa tedious, time consuming and relatively expensive operation, andheretofore no practical machine has been devised for mechanicallyforming, shaping and inserting such liners. It is a purpose of thepresent invention to provide a novel machine structure embodying meansfor feeding liner material from a supply roll, means for corrugating theliner material, means for cutting said material into proper linerlengths, means for serially presenting containers at a liner insertingstation, means for shaping each corrugated liner length into'a cylinderopposite a container at said station, and means for inserting eachshaped liner into a container presented at said station.

Another object of the invention is to provide a machine of the characterstated in which the means for corrugating the liner material also servesas means for drawing said material from the supply roll. Another objectof the invention is to provide a machine of the character stated inwhich the corrugating means comprises a pair of cooperating continuouslyrotating rolls.

Another object of the invention is to provide a machine of the characterstated in which the continuously fed strip of liner material iscorrugated as it is fed and is severed into corrugated liner lengths byan oscillating shear, in which each said liner length is wound intoliner form about a rotary mandrel, in which containers to be lined areserially presented at and released from the lining station by anoscillating escapement means, and in which there is included areciprocable pusher means for pushing. each wound liner into thecontainer at that particular time presented at the lining station.

With the above and other objects in view that will hereinafter appear,the nature of the invention will be more clearly understood by referenceto the following detailed description, the appended claims, and theseveral views illustrated in the accompanying drawings.

In the drawings:

Figure 1 is a vertical longitudinal sectional view illustrating theinvention, the mandrel and the container feed being shown in elevation.

Figure 2 is a vertical cross section taken on the line 2 -2 on Figure 1.

Figure 3 is an enlarged fragmentary longitudinal section illustrating aliner in the process of being pushed into a container.

Figure 4 is an enlarged fragmentary vertical cross section taken on theline 4-4 on Figure 3, the cutting devices having just completed thecutting of a liner length.

Figure 5 is an enlarged fragmentary vertical cross section taken on theline 5-5 on Figure3, the escapement being shown in position for holdinga container in position to receive a liner in dotted lines and inposition for releasing a lined container and supporting the followingcontainers in full lines.

Figure 6 is an enlarged fragmentary vertical cross section taken on theline 6--6 on Figure 3.

Figure 7 is a vertical cross section taken on the line 1-1 on Figure 1.

Figure 8 is a vertical cross section taken on the line 8-8 on Figure 1.

Figure 9 is a horizontal section taken on the line 99 on Figure 1.

Figure 10 is a horizontal section taken on the line Ill-l0 on Figure 1.

Figure 11 is a fragmentary horizontal section taken on the line ll-l Ion Figure '7.

Figure 12 is a diagrammatic view illustrating one manner of connectingthe machine with a current supply, a safety switch being included in thecircuit.

Figure 13 is a perspective view illustrating the invention.

Figure 14 is an enlarged fragmentary longitudinal section illustratingthe yieldabile end or pusher portion of one of the pusher bars, the samebeing shown as being displaced by contact with the liner duringretraction of the respective bar.

Figure 15 is a diagram illustrating the timing of the machine operation,or in other words the timing relation of the strip cutting, strip wind 7base portion including a pair of parallel longitudinal base beams whichare connected at one end as a't B, and at the other end by a transversebase beam 1. A channel beam 8 also connects across and above thelongitudinal beams 5 near the base beam 1 and to it are secured parallel spaced frame uprights 9 and I0. 'An'int'e'rmediate upright I l issecured as at i2 to the upactuator lever 45 is pivoted intermediate itsends as at 46 on the shelf 13, and at its lower end is equipped with aroller 4'! which engages in the groove 29 in the before-mentioned pusherbar shifter sleeve'28. Thus it will be apparent that upon rotation ofthe cam 42, the groove 53 therein will be effective to rock the lever 25and serve tc project and retract the pusher bars 26 at the proper time.

right 10 and extends upwardly inparallel spaced relation to thebefore-mentioned *rrametprrght 9 in the manner clearly illustrated inFigure 1 'of the drawings. The uprights 9 and H are held in rigid spacedrelation near their upperextremities by a spacer beam or shelfl3"which'is secured between them. An angle l4 secured to said spacerbeam serves as an upper anchor for a pair of parallel diagonal bracesupports '15 which are anchored at their lower ends to 'the longitudinalbase beams 5. V

The diagonal base supports 15 form a trunnion support as at lt for atape supply roll l1, an anti-friction support 18 preferably beingprovided as a part of said trunnion bearing.

If desired, spacer rods I9 may be provided as additional meansforsecuringthe "desired spaced relation of the upper end extremities oftheframe uprights 9 andl I, p I q p A mandrel shaft 20 is provided andis rotatable in a bearing 2| provided therefor in the frame upright 9,and inja sleeve bearing ,22"suppor'ted by the upright! I. q A mandrel 23 is secured to one end of the shaft'2ll; and a hub extensioni lp'f thismandrel provides the bearing for th'eparticular end of the shaft '20within the beforementioned bearing sleeve 22. It will 'be apparent byreference to Figures ;1,"3' and'e of the drawings that the mandrel 23 isradially and longitudinally slotted as at 25 to receive thelongitudinally reciprocable liner discharging pusher bars 26, four ofsaid bars being shown in this particular disclosure of the invention.The bars 26 are removably secured "as at 2! to a sleeve 28 which islongitudinally slidable on the mandrel "shaft 20. It will also be notedthat the sleeve 28 is equipped with an annular groove 29, and thepurpose of this groove willbecome apparent as the descriptionprogresses- Flt will also jb'e'noted by reference to Figures Band 4 ofthe drawings that the mandrel 23 is equipped with aplurality of rubberstrip inserts which project from v the periphery of the mandrelintermediatelybf the positions "of the pusher baraccommodating slots25., The rotatable mandrel is surrounded by a cylindrical guide 3t whichis supported as at '32 on the frame upright-ll. It'will'b'e apparentby'reference'to Figure 4 that the guide extends for the limited widthentrance at '33 which defined at one side limit by a guide or stripper VA camshaft '39 is provided and "isrotatabl e. in e.

a bearing 40 'iilthe rrameupright s and a"b'a'r- 'under which the tape59 passes.

K rhe-csm nz'siso has a peripheral recess 8, and a cam finger-fitsprojects endwise therefrom. The purpose of these parts will be describedherein'after. .Therei's a sprocket 5t affixed to cam shaft 39, and thisserves as a part of the means through which rotation is imparted to theshaft and the cam 42 thereon. V V

A corrugated-roll 51 also is securedto the cam shaft 39, and this rollmeshes with a cooperating idler corrugated roll 52 which is freelyrotatable on a Spind1e53 secured in a pair of arms 54 mounted-on'theshaft 39. Adjustable backing screws 56 are threaded into receiving coresin the arms 54 and these extend into longitudinal slots in the armsthrough which the endsof the spindle 53 extend and serve as positioningmeans for said spindle. A bracket 5'! secured as at 58 to the frameupright ll serves as a support for the free endsof the arms 54.

The linermaterial strip or tape '59 is drawn off the supplyroll I? overstroller- 60 carried at the free end of a tensioner arm 6| which ispivoted at 62 on the frame upright H. The arm BI is 'yieldably lifted byan anchored spring 63 and is equipped with "an intermediate 'roll 84After passing under the intermediate 'r'ollM the tape 59 or strip oflining material passes between the cooperating corrugating rolls 5! and52 and throughfree guides 66 which are loosely mounted in and suspendedfrom grooves in the rolls 5| and 52 as at B1.

A fixed cuttermembe'rfiil is secured as at *69 on the frame upright IIand is equipped with a horizontally disposed cutter edge '66. The fixed"cutter edge 10 is engageable by a movablecutter 'ed'ge H carried byanoscillatable cutter T2 which is pivoted as at l3 between the lower ends'of "the actuater" arms 14 which are secured at their upper ends toarock shaft 15. The rock shaft 15 is rockably mounted in a bearing 16 onthe frame gagement in shearing contact relationwith' the fixed cutteredge ill, and an overlapping-guide lug l9 engageable with the fixedcutter member serves to maintain the proper shearing relation of thecutting edges in a manner assuring against overlapping and jamming ofsaid edges. A crank arm secured on the rock shaft 55 is equipped with aroller which engages with the periphery of the cam 42 in position fordropping into the cam recess 48 once during each full rotation of saidcam. Another crank arm 32 is secured on the rock shaft 15 and isconnected with anchored 'springswhich constantly tend to force theroller 8! against the cam and into the cam recess 48. As the crank armcarried roller 8! drops into the recess 48 the springs 83 will impartinward swingingmove'ment to the arms 14 and ca'us'eth'e indvable'cu'tting'edge "1 l "t'o'erigage in'shear'ing rethe r lati'on with the'stationary cutting edge I for cutting off a corrguated liner length, itbeing understood that as the strip or tape 59 is drawn downwardlythrough the corrugating rolls and 52 it is corrugated thereby and passesdownwardly between the pendant strip guides 66. ,Since the rolls 5| and52 rotate continuously,

there will be a limited amount of buckling up 84 and is equipped withspaced, belt receiving grooves placed near the ends thereof. Acooperatinglower idler pulley B8 of like construction is disposed justabove the position of the mandrel in the manner clearly illustrated inFigure 4 and is rotatably mounted on a stud shaft 89 which is secured asat 90 on the frame upright II. Relatively short belts 9| take over theupper driven pulley 8! and the lower idler pulley 08, being disposed inthe grooves thereof so as to bear spaced parallel relation one with theother.

A lower driven pulley 92 constructed in like manner asare the previouslymentioned pulleys is provided and disposed slightly above and to oneside of the mandrel in the manner clearly illustrated in Figure 4. Thepulley 92 is secured on a shaft 93 which is rotatably mounted in thehearing 94 provided therefor in the frame upright 9, and in the bearing95 provided therefor in the frame upright II. The lower driven pulley 92cooperates with a similarly constructed upper idler pulley 95 which ismounted beside the previously described upper driven pulley 81 on a studshaft 97 which is secured as at 98 on the frame upright II. Relativelylong belts 99 take over the upper idler pulley 9t and the lower drivenpulley 92, being mounted in the grooves in said pulleys in position forOpposing and cooperating with the previously described relatively shortbelts 9I.

An electric motor I00 is suitably supported on the base framing andserves to drive the power out-put shaft IOI through a suitable speedreduction gearing generally designated I02. A driver sprocket I03 issecured on the driver shaft I III and drives a chain I04 which serves toimpart rotation to all of the rotating parts of the machine. The chainI04, as viewed in Figures 1 and 8 of the drawings, passes upwardlybehind the lower driven pulley sprocket I05 on the shaft 93 for drivingthe lower driven pulley 92, thence over the cam shaft sprocket 50 fordriving the cam shaft 39, the cam 42 and the corrugating rolls 5| and52, thence downwardly behind the upper pulley shaft sprocket I06 on theshaft 84 for driving the upper driven pulley 81, thence downwardly infront of the tightener sprocket I0'I which idles over the stud I08adjustably mounted as at I09 on the frame upright 9, then behind thesprocket 38 on the shaft to rotate the mandrel 23, and finally about thebefore mentioned driver sprocket I03.

The frame wall 31 forms a part of a paper container chute which is madeup of said frame wall, two side walls I I0 and III and a front wall H2.The front wall II2 preferably is hinged as at I I3 so as to be swingableaway in the manner indicated in Figure 12 so as to make the interior ofthe chute readily accessible. The paper containers which are to be linedare fed into the chute structure by any suitable conveyor means H4, andthe lined-cans are fed away from said chute structure by any suitablefeed away conveyor means II5.

An escapement lever structure H6 is secured on the rock shaft III whichis rockably mounted in the bearing I I8 provided therefor in the frameupright 9, and in the bearing I I9 provided therefor in the frameupright II. An actuator lever I20 also is secured on the rock shaft I I1and projects upwardly therefrom into position for being engaged by theactuator pin 49 projecting from the end of the cam 42. The escapementlever H6 is equipped with an upper escapement pin I2I and a lowerescapement pin I22, said pins projecting outwardly from said lever, orto the right as viewed in Figure 1, and. being disposed to operate inand through slots I23 provided in the frame plate 31. It will beapparent that the escapement lever structure H5, I20 will be shiftedonce for each revolution of the cam 42. When the escapement pins arepositioned as shown in Figure 2 of the drawings the pin I22 willcooperate with the side walls III] and III of the chute structure insupporting the lowermost paper container in axial alignment with themandrel 23, or in other words are positioned for receiving a corrugatedliner pushed longitudinally from Without the annular space between theexterior of said mandrel and the interior of the cylindrical guide 3I.Obviously the remaining paper containers in the chute will be supportedupon the lowermost container which rests upon the escapement pin I22.When the escapement lever is shifted to the left as viewed in Figure 2,the pin I22 will be displaced from its container supporting and aligningposition and will free the lowermost, then lined container and. permitit to fall into the feed away conveyor II5. This shifting of theescapement lever to "release the lined container will bring about amoving of the upper escapement pin I2I to the left, or into position forintercepting and supporting the second and the overlying remainingcontainers in the chute, and after shifter pin 49 moves out of contactwith the actuator lever I 20 the escapement lever will be permittedtoreturn to the position illustrated in Figure 2 in which the upperescapement pin I2I will be displaced and the lower escapement pin I22will be returned into position for intercepting and supporting thecontainers in the chute structure with the lowermost containeraccurately aligned with the mandrel as aforesaid. It will be apparent byreference to Figures 2 and 13 of the drawings that the anchored springI24 connected with the actuator lever I20 constantly tends to hold saidlever in the position illustrated in Figure 2.

In Figure 12 of the drawings there is illustrated one simple manner ofconnecting the motor with a power source, a safety cut-out switch beingincluded in this connection. In this illustration the motor circuit lineI 25 is connected with one power line I26 and has a switch I27 splicedtherein through which the machine can be manually controlled. Thecircuit line I25 also connects with a safety switch I28 which isnormally closed whenever the hinged chute structure door H2 is closed.For this purpose the switch I28 is of the normally open type and thehinged chute door H2 is equipped with a contact member I29 which engagesthe contact of the switch I 28 and holds the same in the closed conditin WPtPFYFPz g 9 1!" ano mn t properly closed-position.

The switch I 2 8 1s con nected through acircuit line (30 with the motorHill which is in turn connected through the circuit line 13-! with thepower line l32.. It will be apparent by reference to Figure '12 thatwhenever the hand switch 4211s closed and the chute structure I2 isclosed the circuit through the motor 138 will becbmyiltedand the partsof the 'rnachine will be incperation. Whenever the hand switch 127 isopened-or the=hingedchute "donut-12 is opened-the'circuit through themotor will be brokenand the operation oi-the machine will be stopped.'It' is to be understood that the strip of liner material 59 is aswideas the height of the can body intended to be linedthereby. As thestrip is drawn downwardly between the cor'rugating 'rolls fi'i andBZ itis corrugated thereby and fed downwardlybetweenthe-guidcs 66. The partsare so timed that each time the crank arm 'car-' ried roller 8|'drops'into the 'recess'4'8 a length of the liner material will havepassed through the corrugating rolls 5! and 52 and below the shearing'edges'i'e and 'H suflicient to form a container'liner and saidshearingedges will come togetherto shear off this liner length. Thesevcred liner length is'conveyed downwardlyby the cooperating-"belt sets9| and "Qeand is directed into-the guide entrance 33 in'the mannerillustrated in Figure '4. The continuously rotating mandrel "23 and therubber inserts 30 thereof cause the liner to be wound about the mandrelwithin the cylindrical guide?! i, and as the formation of the" linercylinder is completed the cam groove functions to shift the lever 45 andcause the pusher bars 26 to displace the shaped liner longitudinally'inthe manner illustrated in Figure 3 andtinsert the-same into thecontainer aligned opposite the "mandrel by the escapement 'pin' I22.'Ihepusher bars 2'6 are then promptly retracted so that'the next linerstrip can be directed into the shaping guide and about the constantlyrotating 'mandrel', and the escapement devices function in the mannerpreviously described to release the. lined vcontainer into the feed-awayconveyor I I5 and momentarily suppcrt'the remainder of the supply ofcontainers, and then to shift back to the position'illustrated in Figure2 to again support" the lowermost container now aligned withthe mandrelf or'receiving the next shaped and longitudinally displaced corrugatedliner.

As before statedgthe rotation of the mandrel, the cam'dl, thecorrugating rolls 5! and 52 and the driven pulleys 81 and 92 iscontinuous,

and the machine functions to shape and insert the liners withgreatrapidity.

The particular manner of arranging and operating the parts as hereindisclosed provides advantages in the way 'of simplicity in structure andaccuracy and rapidity in operation. For example, the employmentbftherolls"5l and 52 as both feeding and corrugating means serves not onlyto-simplify the structure "but also to proide for smooth'and positivefeeding of the strip. The knife i! operates intermittently to cut properliner lengths from thecontinuouslyfe'd strip, and the rolls 5| and'fiz'and" the guides 66 are so arrangedwith relation to t le'cutting devicesthat the non-cut and feeding strip length abovethe just the right lengthof strip extension to be severed in the formation of a proper liner"length. In the diagram Figure 15 the space between 1 the dot and dashlines AA, B-B represents.

the 360 of circumference of the rotary'cam 42 which-serves to actuatethe cutting edge H, the

liner inserting pusher bars 26'and the escape.

ment lever H5, and the line I33 extending across between said dot anddash lines represents a development of the-actuator groove 43 of-sai'dcam'and the timing of the liner pusher bars 26. The line 135 representsa development of the escapement operation timing, the line I35represents the timing of the strip feeding and winding, and the line I36represents the timing of thestrip cutting. By reference to this simplediagram it-is possible quickly to determine the eooperative relation'andtiming of the several operating parts, the formation and insertion ofthe liners.

It will be apparent from the diagram in Figurel5 that the winding ofeach liner strip about the mandrel is commenced-before the retraction ofthe pusher bars 26 is completed. This is made possible by providing eachpusher bar 26 with a "pivotally mounted pusher end portion26 Each saidend portion is normally held in its projected or effective positionshown in Figure 3 by a spring rod equipment 26b, but is free to yield inthe manner indicated in Figure l lwhen the bars are being retractedthrough a liner being wound about the mandrel and will again spring outbehind said liner to the Figure '3 position as soon as it is fullyretracted or clear of said liner.

lvlore, specifically, in operation, the bar-s26- on the injection strokepush the formed-liner-ofi the mandrel into the waiting can body. Just asthe bars commence to retract, at a slower rate, thanext corrugated stripreaches the mandrel and is gripped between the rubber inserts 30 and theguide wall 3!. The retracting bars slide underneath the liner and thespring urged end portion 26a of each bar is depressed as it con tactsthe edge of the liner as shown'in Figure 14 and stays depressed whilepassing under'or along the corrugations until fully retracted,.Wh'en'the spring rod equipments 2% will serve to snap said bar endportions to their raised or projected position behind the liner; After ashort dwell the bars 26 are again advanced to push the formed liner intothe next waiting can body as shown in Figure 3.. While one form of theinvention has been shown for purposes of illustration, it is to beclearly understood thatvarious changes inthe details of construction andarrangement of parts may be made without departing .from the spirit andscope of the invention as defined in..the ap pended claims.

I'claim: '1. In a machine of the character described, means fordirecting av strip ofliner material from a supply roll, means forcorrugating the strip of liner materiah. means for'cutting'said strip ofcorrugated liner material into proper liner lengths, means for seriallypresenting containers at a liner inserting station, means for shapingeach corrugated liner length into a single walled cylindrical lineropposite a container at said station, and means for inserting eachshaped liner into a container presented at said station.

2. In a machine of the character described, means presenting acontinuous strip of liner material, means for cutting the strip intoliner lengths, cooperating corrugating rolls for continuously feedingthe strip to the cutting means and for corrugating the same'as it isbeing fed, means" for serially presenting containers at a linerinserting station, means for shaping each corrugated and cut linerlengthinto a single walledcylindrical liner opposite a container at saidstation, and means for inserting each shaped liner into a containerpresented at said station.

3. In a machine of the character described, means for directing a stripof liner material from a supply roll, means for corrugating the strip ofliner material, means for cutting said strip of corrugated linermaterial into proper liner lengths, means for serially presentingcontainers at a liner inserting station, guide means for confining eachcut and corrugated length of liner material in the form of a singlewalled cylindrical liner opposite a container at said station, opposedbelt means for presenting each cut and corrugated length of linermaterial to said guide means, and pusher means for pushing eachcylindrical liner into a container presented at said station.

4. In a machine of the character described, means presenting acontinuous strip of liner material, means for cutting the strip intoliner lengths, cooperating corrugating rolls for continuously feedingthe strip to the cutting means and for corrugating the same as it isbeing fed, means for serially presenting containers at a liner insertingstation, guide means for confining each cut and corrugated length ofsingle walled liner material in the form of a cylindrical liner oppositea container at said station, opposed belt means for receiving the linerlengths as they are cut and presenting them to said guide means, andpusher means for pushing each cylindrical liner into a containerpresented at said station.

5. A machine structure as defined in claim 1 in which the liner shapingmeans includes a rotary mandrel and the liner inserting means includespusher devices rotatable with and slidable relative to the mandrel andengageable behind liners wound about the mandrel for pushing them oilthe mandrel and into containers aligned to receive them at the linerinserting station.

6. Machine structure as defined in claim 1 in which the liner shapingmeans includes a rotary mandrel and a guide member at least partiallysurrounding the samev in spaced relation, in which there are includedopposed belts for feeding the corrugated liner lengths from the cuttingmeans to the guide means, and in which the inserting means comprisespusher devices engageable endwise with each liner in the space betweensaid mandrel and guide and movable endwise with relation to the mandreland the aligned container.

7. Machine structure as defined in claim 1 in which the shaping meansincludes a mandrel and the container presenting means includes a chutestructure throughwhich the containers gravitate in processional orderand an oscillatable escapement means having at least two alternatelyeffective fingers one of which is effective to support a container inthe bottom of the chute in alignment with the mandrel with the followingcontainers resting thereon and the other of which is effectivewhen saidone is moved away to support said following containers as said bottomcontainer is released and permitted to fall away by removal of said onefinger.

8. Machine structure as defined in claim 1 in which the power fordriving the several means is derived from an electric motor, in whichthe container presenting means includes a chute structure through whichthe containers pass and which includes a removable door through whichaccess may be had to the interior of the chute, and

in which'the motor is served by a power circuit including a switch whichis actuated by movement of the door so as to be closed whenever thechute door is properly closed and which is opened when said door isremoved or improperly closed so as to open the circuit and discontinueoperation of said motor.

9; In a machine of the character'described, a continuously rotatingmandrel, a guide surrounding the mandrel in spaced relation but for anentrance of limited width into said space, a pair of continuously drivencooperating corrugating rolls, means for directing a continuous strip ofliner material between said rolls, shearing means for cutting the stripinto liner lengths as it is fed between and corrugated by said rolls,opposed belts for directing the corrugated and out liner lengths intothe guide entrance to be wound into' cylindrical form about the mandrelwithin the guide, means for serially placing containers in alignmentwith the mandrel and guide, and pusher means for pushing each shapedliner out of the guide and into a container presented in alignmenttherewith.

10. Machine structure as defined in claim 9 in which there is Provided asingle continuously rotating cam and means for actuating said shearingmeans and said pusher means from said cam in suitably timed relation.

11. Machine structure as defined in claim 9 in which there is provided asingle continuously rotating cam and means for actuating said shearingmeans and said pusher means from said cam in suitably timed relation,and in which the mandrel, the rolls and the cam are driven throughsprocket and chain connections with all sprockets engaged by a singledriving chain.

12; Machine structure as defined in claim 9 in which the containerplacing means includes a chute structure through which the containersgravitate in processional order and an oscillatable escapement meanshaving fingers alternately placeable "for supporting all containers inthe chute with the lowermost in alignment with the mandrel and'guide orfor, releasing said lowermost container and supporting those followingit, and'in'which there is provided a singlecontinuous'ly rotating camand means for actuating said shearing means, said pusher means and saidescapement means from said cam in suitably timed relation.

13. Machine structure as defined in claim 9 in which the containerplacing means includes a chute structure through which the containersgravitate in processional order and an oscillatable escapement meanshaving fingers alternately placeable for supporting all containers inthe chute with the lowermost in alignment with the I mandrel and guideor for releasing said lowermost container and supporting those followingit;

connections with all sprockets engaged by a single driving chain. a

14.. Machine structure as defined in claim 9 in which the containerplacing means includes a i chute structure through-which the containersgravitate in processional order and an oscillatable escapement meanshaving fingers alternately placeable for supporting all containers inthe chute with the lowermost in alignment with the mandrel and guide orfor releasingsaid lowermost container and supporting those following it,

and in which there is provided a single'continuously rotating cam andmeans for actuating said shearing means, said pusher means and saidescapement'means'from said cam in suitably timed relation, in which thepower for driving the several means is derived from an electric motor,in which the container presenting means includes a chute structurethrough which the containers pass and which includes a removable doorthrough which access may be had to the interior of the chute, and inwhich the motor is served by a power circuit including a switch which isclosed whenever the chute door is properly closed and which is openedwhen said door is removed or improperly closed so as to open thecircuitand discontinue operation of said motor.

15. In a machine of the character described, means for directing a stripof liner material from a supply roll, means for corrugating the strip ofliner material, means for cutting said strip of corrugated linermaterial into proper liner lengths, means for serially presentingcontainers at a liner inserting station, means for shaping eachcorrugated liner length into a single walled cylindrical liner oppositea container at said station, means for feeding the cut liner lengthsfrom the cutting means to the shaping means, and means for insertingeach shaped. liner into a container presented at said station, saidliner length feeding means op rating at an accelerated speed eifectiveto provide spacing between successively cut liner lengths sufiicient toallow each liner r and for corrugat ng the same as it is being fed,

means for serially presenting containers at a liner inserting station,means for'shaping each corrugated, and cut liner len th into a singlewalled cylindrical liner opposite a container at said station, means forfeeding the cut liner lengths from the cutting means to the shapingmeans, and means for inserting each sha ed liner into a containerpresented at said station, said liner length feeding means operating atan accelerated speed effective to provide spacing between successivelycut liner lengths sufilcient to allow each liner shaping and insertionto clear the suc,' ceeding presentation of a liner length to saidshaping means.

17. In a machine of the character described, means presenting acontinuous strip of l ner 1 terial', means for cuttingthe strip intoliner lengthscooperating corrugating rolls for con tinuously feeding thestrip to the cutting means and for corrugating, the same as it is beingfed, means ,for serially presenting containers. at a liner insertingstation, guide means for confining each cut and corrugated lengthrofliner material in the form of a cylindrical liner opposite a containerat said station, opposed belt means for receiving the liner lengths asthey are cut and presenting them at accelerated speed to said guidemeans to provide spacing between the liner lengths thus seriallypresented to said guide meanaand pusher means for pushing each cylin-.drical' liner into a container presented at said 7 station.

18. In a machine of the character described, a

continuously rotating mandrel, a guide surrounding the mandrel in,spaced relation but for an entrance of limited width into said space, apair of continuously driven cooperating corrugating rolls, means fordirecting a continuous strip of liner material between said rolls,shearing means for cutting the strip into liner lengths as it is fedbetween and corrugated by said rolls,opposed belts'for directing thecorrugatedand cut liner lengths into the guide entrance to be wound intocylindrical form aboutthe mandrel within the guide, said belts beingdriven at an acceler ated speed with relation to said rollsso as toprovide spacing between the liner lengths serially fed by the belts intosaid guide entrance, means for serially placing containers, in alignmentwith the mandrel and guide, and pusher'means for pushing each shapedliner out of the guide and into a container presented in alignment therewith.

19. Apparatus as defined in claim 1 in which the means for shaping theliner lengths comprises a rotary mandrel about which said lengths arewound, and said inserting means comprises pusher bars longitudinallyprojectible and retractable with respect to said mandrel, there alsobeing included means for operating the cutting means and the pushermeans in timed relation so that before the pusher .bars are fullyretracted after being advanced to insert one liner another liner isbeingwound about said mandrel and the pusher bars, said pusher barshaving spring p'roj'ected pusher end portions normally tending to springout into pushing position behind a liner but Whichareyieldable to permitretraction of. the bars through a liner being wound on the mandrel. V

20. In a machine of the character described, a continuouslyrotating'mandrel, a guide surrounding the mandrel in spaced relationvbut for an entrance of limited width into said space, a pair ofcontinuously driven cooperating corrugating rolls; means for directing acontinuous strip! of liner material between said rolls, shearing means.

mandrel for pushing each shaped liner out of the: guide and a containerpresented in align.

13 14 ment therewith, and means for operating the REFERENCES CITEDshearing means the belts and the pusher bars The followin references areof record in the in timed relation so that before the pusher bars fileof this ai are fully retracted after being advanced to insert one lineranother liner is being wound about said 5 UNITED STATES PATENTS mandreland the pusher bars, said pusher bars having spring projected pusher endportions nori gg z la y; g 9 14 mally tending to spring out into pushingposition 1 1 B ker 1916 behind a liner but which are yieldable to permit2 g; i 1917 retraction of the bars through a liner being 10 1,340,110Bolger May 11, 1920 wound on the mandrel. 1 540 336 H ett J ne 2 1925ROBERT s. CONDON. 1

2,030,693 Eden Feb. 11, 1936

